HP StorageWorks 2/16V HP StorageWorks Fabric OS 5.3.2 release notes (5697-7964 - Page 10

a, such as FCR trunking, you cannot downgrade below Fabric OS 5.2.0a. If you want to do so

Page 10 highlights

CAUTION: If the 4/256 SAN Director integrates the FC4-48 Blade or any new software features in Fabric OS 5.2.0a, such as FCR trunking, you cannot downgrade below Fabric OS 5.2.0a. If you want to do so, you must (a) remove these features, (b) physically remove the Blade, and then (c) downgrade the firmware. • For any other new software features or increased scalability limits supported by Fabric OS 5.3.x, downgrade will be disruptive and require a cold reboot. • A Fabric OS 5.3.x configuration file cannot be used on the same switch after the switch has been downgraded to firmware version 5.1.x or 5.2.x. • When you downgrade to Fabric OS 5.0.x, you must also remove additional 5.1.x features and any installed B-Series MP Router blades. 10

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CAUTION:
If the 4/256 SAN Director integrates the FC4-48 Blade or any new software features in Fabric OS
5.2.0a, such as FCR trunking, you cannot downgrade below Fabric OS 5.2.0a. If you want to do so,
you must (a) remove these features, (b) physically remove the Blade, and then (c) downgrade the
firmware.
For any other new software features or increased scalability limits supported by Fabric OS 5.3.x,
downgrade will be disruptive and require a cold reboot.
A Fabric OS 5.3.x configuration file cannot be used on the same switch after the switch has been
downgraded to firmware version 5.1.x or 5.2.x.
When you downgrade to Fabric OS 5.0.x, you must also remove additional 5.1.x features and
any installed B-Series MP Router blades.
10